MiMo-V2.6-Flash vs gpt-oss-20b: Pricing & Benchmarks

At a glance

Quick verdict

How the two models stack up on the things people ask about most.

Lower price

gpt-oss-20b

5.2x cheaper for a typical chat

Higher intelligence score

Not available

Not enough benchmark data

Larger context window

MiMo-V2.6-Flash

1.05M vs 131K tokens

Newer release

MiMo-V2.6-Flash

Released September 21, 2026

Benchmarks

Benchmark scores

Independent scores from Artificial Analysis. Higher is better.

Intelligence index

MiMo-V2.6-Flash26.7

gpt-oss-20bNot available

Coding index

MiMo-V2.6-FlashNot available

gpt-oss-20b20.7

Agentic index

MiMo-V2.6-FlashNot available

gpt-oss-20b1.2

Pricing

MiMo-V2.6-Flash vs gpt-oss-20b API pricing

Per-token API rates. Cheaper option highlighted.

Metric	MiMo-V2.6-Flash	gpt-oss-20b
Input tokensPer 1M tokens	$0.14	$0.02
Output tokensPer 1M tokens	$0.28	$0.09
Cached input (read)Per 1M tokens	$0.00	$0.01
Cache writePer 1M tokens	Not available	Not available

What it costs in practice

Estimated cost per 1,000 requests at standard rates. Coding and long-document figures also show the cost when the input is already cached.

Chat message

2K in, 500 out

MiMo-V2.6-Flash$0.42

gpt-oss-20b$0.08

Coding task

30K in, 4K out

MiMo-V2.6-Flash$5.32$1.20 cached

gpt-oss-20b$0.90$0.63 cached

Long document summary

150K in, 2K out

MiMo-V2.6-Flash$21.56$0.98 cached

gpt-oss-20b$2.88$1.53 cached

Specs

Context window and capabilities

How much each model can read, how much it can write, and what it accepts as input.

Metric	MiMo-V2.6-Flash	gpt-oss-20b
Context window	1.05M tokens	131K tokens
Max output	131K tokens	33K tokens
Input types	Audio, Image, Text, Video	Text
Output types	Text	Text
Reasoning effort levels	Not available	High, Medium, Low
Default reasoning effort	Not available	Medium
Release date	September 21, 2026	August 5, 2025

Features

Supported features

API features available for each model.

Metric	MiMo-V2.6-Flash	gpt-oss-20b
Tool calling	Supported	Supported
Structured outputs	Supported	Supported
JSON mode	Supported	Supported
Reasoning	Supported	Supported
Temperature	Supported	Supported
Stop sequences	Supported	Supported
Deterministic seed	Supported	Supported
Verbosity control	Not supported	Not supported

Keep exploring

More on these models

Other head-to-heads, the full model page, and the alternatives list for each model.

MiMo-V2.6-FlashView full model details

All alternativesBest MiMo-V2.6-Flash alternatives

gpt-oss-20bView full model details

All alternativesBest gpt-oss-20b alternatives

Our take

gpt-oss-20b is 5.2x cheaper for a typical chat. MiMo-V2.6-Flash has the larger context window (1.05M vs 131K tokens). The right pick depends on your workload, so the quickest way to settle it is to send the same prompt to both and compare.

FAQ

Frequently asked questions

Is MiMo-V2.6-Flash or gpt-oss-20b cheaper?

gpt-oss-20b is cheaper for a typical chat (2K input tokens and 500 output tokens). gpt-oss-20b costs $0.02 per 1M input tokens and $0.09 per 1M output tokens, while MiMo-V2.6-Flash costs $0.14 per 1M input tokens and $0.28 per 1M output tokens.

Which has a bigger context window, MiMo-V2.6-Flash or gpt-oss-20b?

MiMo-V2.6-Flash supports up to 1.05M tokens of context, compared with 131K for gpt-oss-20b.

Can I use MiMo-V2.6-Flash and gpt-oss-20b at the same time?

Yes. Shortcut Chat sends one prompt to multiple models at once, so you can see MiMo-V2.6-Flash and gpt-oss-20b answer side by side and keep the better response.

Why choose? Ask both.

Send one prompt to MiMo-V2.6-Flash and gpt-oss-20b at the same time. Compare the answers side by side and keep the best one.

Get started See a preview